(1 1/3)^2 решить с решением
(1 1/3)^2 = (4/3)^2 = (4^2)/(3^2) = 16/9 = 1 целая 7/9
(1 1/3)^2 = (4/3)^2 = 4^2 / 3^2 = 16/9 = 1 7/9